BTKEY(1)                NetBSD General Commands Manual                BTKEY(1)

NAME
     btkey -- Bluetooth Link Key management utility

SYNOPSIS
     btkey [-CcRrWw] [-k key] -a address -d device
     btkey -Ll [-d device]

DESCRIPTION
     The btkey program is used to manage Bluetooth Link Key storage.  Keys are
     normally handled by the bthcid(8) daemon which caches them in the
     /var/db/bthcid.keys file and provides them as required when Bluetooth
     connections need to be authenticated.

     These keys are required for connections between remote devices and the
     specific controller (not the Operating System) and so for multi-boot sys-
     tems where it may not always be possible to specify the same key across
     all OS's it can be better to have the Bluetooth controller provide the
     keys directly from its semi-permanent memory once devices are paired.
     btkey will read, write or clear keys in device memory or the key cache as
     required.

     Note that without the bthcid(8) daemon running users will be unable to
     supply PINs, and Link Keys resulting from new pairings will not be
     stored.  If no new pairings are expected and the keys are stored in the
     controller then bthcid(8) is not required.

     The options are as follows:

     -a address  Specify the remote device address.  May be given as a BDADDR
                 or a name.

     -C          Clear key from device.

     -c          Clear key from file.

     -d device   Specify the local device address.  May be given as a BDADDR
                 or a name.

     -k key      Supply a Link Key as a string of hexadecimal digits.  Up to
                 32 digits will be processed and the resulting key will be
                 zero padded to 16 octets.

     -L          List keys stored in device.

     -l          List keys stored in file.

     -R          Read key from device.

     -r          Read key from file.

     -W          Write key to device.

     -w          Write key to file.

     Super-user privileges are required to read or write link keys.

EXIT STATUS
     The btkey utility exits 0 on success, and >0 if an error occurs.

FILES
     /var/db/bthcid.keys

EXAMPLES
     Read key for mouse at ubt0 from file and write to device

           btkey -d ubt0 -a mouse -rW

     Write new key for keyboard at ubt0 to file

           btkey -d ubt0 -a keyboard -k 92beda6cd8b8f66ebd2af270d55d70ec -w

     Clear key for phone at bt3c0 from file and device

           btkey -d bt3c0 -a phone -cC

SEE ALSO
     btpin(1), btconfig(8), bthcid(8)

AUTHORS
     Iain Hibbert

NetBSD 7.0                     November 8, 2007                     NetBSD 7.0

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